<%@ page contentType="text/html;charset=UTF-8" language="java" %>
<html>
<head>
    <title>Title</title>
</head>
<body>
        <h1>hello springmvc</h1>
        <h2>requestScope username:${requestScope.username}</h2>
        <h2>sessionScope username:${sessionScope.username}</h2>
        <h2>applicationScope username:${applicationScope.username}</h2>
        <h2>code:${code}</h2>

</body>
</html>
